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Simplifying f(d) = 2(d) + -1 Multiply f * d df = 2(d) + -1 Reorder the terms: df = -1 + 2d Solving df = -1 + 2d Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '-2d' to each side of the equation. -2d + df = -1 + 2d + -2d Combine like terms: 2d + -2d = 0 -2d + df = -1 + 0 -2d + df = -1 Reorder the terms: 1 + -2d + df = -1 + 1 Combine like terms: -1 + 1 = 0 1 + -2d + df = 0 The solution to this equation could not be determined.
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